EP4043354A1 - Dispositif de rétraction, procédé d'optimisation de la rétraction d'une matière d'emballage au niveau d'un assemblage comprenant au moins un article et un module de retrait - Google Patents

Dispositif de rétraction, procédé d'optimisation de la rétraction d'une matière d'emballage au niveau d'un assemblage comprenant au moins un article et un module de retrait Download PDF

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Publication number
EP4043354A1
EP4043354A1 EP21214804.3A EP21214804A EP4043354A1 EP 4043354 A1 EP4043354 A1 EP 4043354A1 EP 21214804 A EP21214804 A EP 21214804A EP 4043354 A1 EP4043354 A1 EP 4043354A1
Authority
EP
European Patent Office
Prior art keywords
shrinking
shrinking agent
agent introduction
transport
agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21214804.3A
Other languages
German (de)
English (en)
Inventor
Marcus KREIS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP4043354A1 publication Critical patent/EP4043354A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/063—Tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/02—Arrangements to enable adjustments to be made while the machine is running

Definitions

  • the present invention relates to a shrinking device, a method for optimizing the shrinking of a packaging material onto an assembly comprising at least one article and a shrinking agent module according to the features of the independent claims.
  • the present invention relates to the feeding of shrinking agent within a shrinking device, in particular the feeding from below over the conveying means of the shrinking device.
  • thermoplastic packaging material in particular a shrink film
  • This shrink film is generally wrapped around at least one article or assembly of articles as a film blank by means of a wrapping system.
  • the thus at least partially wrapped articles are transported through a shrinking device.
  • the shrink device for example a shrink tunnel
  • the articles wrapped with thermoplastic packaging material are subjected to a shrinking agent, for example hot gas, e.g. warm or hot air, which causes the shrink film to contract so that it clings to the article and the finished packaging unit or the forms finished shrink packs.
  • a shrinking agent for example hot gas, e.g. warm or hot air
  • shrink tunnels with at least one inner shaft wall are used for multi-web processing. This inner shaft wall has nozzle openings on both Side walls parallel to the transport direction, so that the shrinking agent flows into the interior of the shrink tunnel on both sides.
  • shrinking agent generator is used for this purpose, for example a hot-air blower, which is arranged below an air-permeable conveyor device on which the wrapped articles are transported through the shrink tunnel.
  • the conveyor is often designed as a conveyor belt or other suitable funding. It is known in the prior art to apply shrinking agent to the entire surface of the conveyor belt from below.
  • the conveyor belt which is permeable to the shrinking agent, is often supported on so-called sliding elements, which are also referred to as sliding strips and which extend through the shrink tunnel parallel to the direction of transport.
  • a particular disadvantage of the full-surface application of heat is that the conveyor belt is heated over the entire width. This can lead to the packaging material sticking to the conveyor belt. Furthermore, this causes a high energy discharge from the shrink tunnel and an increased effort when cooling the conveyor belt in the return, especially in the area of the lower run.
  • the object of the invention is to improve the shrinking of packaging material onto articles, in particular the energy requirement of the shrinking process is to be reduced.
  • the products to be applied within the shrinking device by means of shrinking medium or shrinking means are formed, for example, by a plurality of articles or at least one article which is/are wrapped with a packaging material.
  • a packaging material is wrapped around the at least one article or the combination of articles in the wrapping device.
  • the packaging material is preferably formed from a thermoplastic flat shrink material, in particular a shrink film, which contracts when heat is applied and thus rests against the outwardly facing outer lateral surfaces of the articles, resulting in a close bond in the form of a packaging unit, which packaging unit is also referred to below as a shrink pack referred to as.
  • the shrink material may be a shrink tube or label that is placed around an article and shrunk onto the article within the shrink apparatus.
  • a shrink label it may be necessary to fix its position on the article by means of an adhesive dot or similar, at least temporarily before the start of the shrink process.
  • the articles are preferably containers, in particular beverage containers such as bottles, cans or the like made of glass, plastic, metal etc.
  • a shrinking device has an interior space with a transport path for the at least one-track transport of articles or combinations of articles wrapped with packaging material.
  • the transport path is formed, for example, by a conveyor device in the form of a circulating conveyor belt or the like, which extends through the shrinking device.
  • the shrinking device comprises a plurality of shrinking agent application devices which are designed to apply shrinking agent to the articles wrapped with packaging material. These are preferably lateral shrinkage agent introduction devices and/or lower shrinkage agent introduction devices and/or upper shrinkage agent introduction devices.
  • the lateral shrinking agent introduction devices are designed as shaft walls, which each have at least one outflow surface for shrinking agent directed towards the respective transport path.
  • the number of shaft walls defines the number of transport sections formed.
  • so-called outer shaft walls are provided on both sides on or above the transport section, each having an outflow surface facing the interior of the shrinking device and a closed side surface facing the housing of the shrinking device.
  • An inner shaft wall is arranged in the middle or approximately in the middle between the two outer shaft walls, the two essentially vertical side surfaces of which are each designed as outflow surfaces parallel to the transport direction.
  • the central or inner shaft wall thus feeds shrinking medium or shrinking agent in particular to the two parallel transport sections, with the application of shrinking medium to the two parallel transport sections having or can have approximately the same magnitude.
  • the at least one lower shrinking agent introduction device which is designed to introduce shrinking agent with an upward flow direction via the transport path into the interior of the shrinking device, is arranged below the transport route. It is provided here that the at least one lower shrinking agent introduction device can be arranged in different positions below the transport section.
  • the supply of shrinking agent can be tailored to the products passing through the shrinking device.
  • a change and adjustment of the position of the lower shrinking agent inserting device thus takes place in particular when the shrinking device is put into operation for the first time or when the product is changed or the like.
  • the at least one lower shrinking agent introduction device extends essentially along a longitudinal extent of the shrinking device below the transport section and is arranged or designed to be movable.
  • the at least one lower shrinking agent introduction device is designed to carry out a movement orthogonal to the transport direction.
  • the at least one lower shrinking agent introduction device is arranged on a positioning device that is formed by a rail system or the like.
  • the positioning device preferably extends below the transport path transversely to the transport direction and the at least one lower shrinking agent introduction device can assume different positions below the transport path by displacement transversely to the transport direction.
  • a plurality of lower shrinking agent introduction devices are arranged on a correspondingly designed positioning device or on a plurality of positioning devices. It is preferably provided that the respective position of the at least two lower shrinking agent introduction devices can be set independently of one another on the at least one positioning device.
  • a shrinking agent generator for example a hot air blower for generating hot air, is assigned to the at least one lower shrinking agent introduction device. If a plurality of lower shrinkage agent introduction devices are provided, the supply of shrinkage agent to each lower shrinkage agent introduction device can preferably be regulated individually. In particular, the supply of shrinking agent to at least one lower shrinking agent introduction device can also be switched off completely if required. In order to bring about this, it can be provided that each lower shrinking agent introduction device is assigned its own shrinking agent generator.
  • lower shrinkage agent introduction devices can also be connected to a common shrinkage agent generator.
  • the lower shrinkage agent introduction devices are connected to the respective shrinkage agent generator via flexible supply lines, which allow the lower shrinkage agent introduction devices to be repositioned without interference.
  • adjusting means can be provided in order to be able to control and adjust the supply of shrinking agent to the different lower shrinking agent introduction devices differently as required.
  • the adjustment means can be formed, for example, by valves, throttle valves or other suitable devices.
  • the at least one lower shrinking agent introduction device is designed as a nozzle module, which nozzle module has nozzle openings on an upper side pointing towards the transport section, through which nozzle openings the shrinking agent flows out upwards in the direction of the transport section.
  • the size of the nozzle openings and/or the application of shrinking agent to the nozzle openings can be set and/or changed at least partially in areas along the longitudinal extent to adapt to the product to be processed.
  • the underside can be heavily applied with shrinking agent from below in order to quickly achieve a stable standing surface by shrinking the packaging material onto the bottom area of the article.
  • the supply of shrinking agent coming from below can be reduced in the following areas.
  • the necessary sliding strips which serve as a support surface and/or stabilization surface for the conveyor device, are assigned to the lower shrinking agent introduction devices or are designed as part of the same.
  • At least one sliding strip is assigned to or arranged on the upper side of the lower shrinking agent introduction devices.
  • two sliding strips extend parallel to the transport direction on the upper side edges of a lower shrinking agent introduction device. This is particularly advantageous when the width of the articles wrapped with packaging material transversely to the direction of transport is less than the width of the respective lower shrinking agent introduction device.
  • the articles are guided centrally over the lower shrinking agent introduction device, which ensures that the entire underside of the articles wrapped with packaging material is acted upon by shrinking agent from below.
  • the stabilization of the conveying device takes place in particular in laterally allocated areas in which the articles do not stand up.
  • the sliding strip also has nozzle openings, with the nozzle openings of the sliding strip being aligned with the nozzle openings on the upper side of the lower shrinking agent introduction device, so that shrinking agent is guided upwards through the overlying conveyor device via the sliding strips.
  • the positioning and/or the operating state of further lateral shrinking agent introduction devices can also be controlled via the control device in order to be able to easily adapt the transport sections to new production conditions when there is a product change.
  • the lateral shrinking agent introduction devices can also be shifted transversely to the transport device in order to change the width of individual transport sections.
  • the supply of shrinking agent can also be provided switch on or off to individual lateral shrinking agent introduction devices as required.
  • a coordinated adjustment of the at least one lower shrinkage agent introduction device and further lateral shrinkage agent introduction devices can take place via the control device.
  • a shrinking means module for a shrinking device comprises at least one shrinking agent introduction device and at least one positioning device.
  • the shrinking agent module is designed to be arranged below a transport path of the shrinking device, with the shrinking agent introduction device being designed to dispense shrinking agent with an upward flow direction and with the shrinking agent introduction device being able to be fixed in different positions on the positioning device.
  • the number of transport sections within a shrinking device can be adjusted during a product change thanks to a modular design, in particular through the modular arrangement of shrinking agent modules with at least one lower shrinking agent introduction device and/or the modular arrangement of inner shaft walls for lateral spraying with shrinking agent.
  • a modular design in particular through the modular arrangement of shrinking agent modules with at least one lower shrinking agent introduction device and/or the modular arrangement of inner shaft walls for lateral spraying with shrinking agent.
  • the lower shrinking agent introduction devices are formed by longitudinally aligned, adjustable flow channels, which are designed in a manner comparable to a shaft wall base body known from the prior art.
  • the flow channels are arranged under a conveying device designed, for example, as a mesh belt.
  • the top of the flow channels is perforated so that shrinking agent in the form of hot air or similar flows out upwards.
  • Slide rails for supporting the conveying device are arranged on the flow channels.
  • the shrinking process can be influenced in a targeted manner and, in particular, can be directed to specific areas.
  • the shrinking agent can be applied in a targeted manner to the products, in particular the articles or combinations of articles wrapped with packaging material. Since not the entire conveyor, but only parts of the transport chain or similar are heated, energy can be saved. Due to the lower overall heating of the conveying device, sticking of the packaging material to the same is reduced.
  • the arrangement of the slide rails on the lower shrinking agent introduction devices also enables advantageous positioning in relation to the respective products, since the products can preferably be guided along between the slide rails in each case. As a result, the products can be fully covered with shrinking agent from below. This for an optimized and symmetrical shrinking result.
  • the at least one lower adjustable shrinking agent introduction device extends over a maximum of half the length (seen in the transport direction of the pack) of the shrinking device.
  • the at least one lower adjustable shrinking agent introduction device extends over a maximum of three quarters of the length (seen in the transport direction of the pack) of the shrinking device.
  • adjustable shrinking agent introduction devices extend or extend over a maximum of three quarters, alternatively a maximum of half, of the length (seen in the transport direction of the pack) of the shrinking device.
  • an initial zone of the shrinking device (seen in the transport direction of the pack) does not have any adjustable shrinking agent introduction devices and/or positioning devices.
  • a middle zone and/or end zone of the shrinking device has adjustable shrinking agent introduction devices and/or positioning devices.
  • the 1 shows a shrinking device 1 according to the known prior art in a sectional view in the direction of transport.
  • the 2 shows an enlargement of a detail of the transport section 6 1 .
  • the shrinking device 1 is used in particular to shrink thermoplastic packaging material 2 onto articles 3 or groups of articles 4 .
  • the shrinking device 2 has an interior space 5 with a transport path 6 for the at least one-lane transport of article groups 4 wrapped with packaging material 2 in one transport direction.
  • the transport path 6 is formed here by a circulating conveyor belt 7 .
  • the shrinking device 1 has shrinking agent introduction devices 8 which are designed to apply shrinking agent to the articles 3 wrapped with packaging material 2 .
  • lateral shrinking agent introduction devices 9 are provided, in particular lateral shaft walls 10, which have an outflow surface 11 for shrinking agent directed towards the respective transport path.
  • the shrinking device has three inner shaft walls 12, which each have outflow surfaces 11 for shrinking agent on both sides, in order to apply this laterally to the articles 3 wrapped with packaging material 2 transported via the transport tracks.
  • the shrinking device 1 comprises two outer shaft walls 13, which in particular each have an outflow surface 11 pointing in the direction of the interior 5 of the shrinking device 1, while the other side surface of the outer shaft walls 13 is designed as a closed side surface 14.
  • a lower shrinking agent introduction device 15 in the form of a floor chamber 16 or the like is preferably provided, which is located below the transport section 11 and is designed to apply shrinking agent with an upward flow component through the conveyor belt 7 onto the underside of the packaging material 2 wrapped Article 4 to direct.
  • one or more cooling devices can be provided, which cool the conveyor belt 7, particularly in the area of the return over cool down the return run (not shown).
  • the shrinking agent is also deflected by the sliding strip 18 in such a way that a certain proportion hits the conveyor belt 7 further away from the sliding strip 18 from below. This reduces the amount of shrinking agent that escapes in this area. In particular, in the area immediately above the sliding strip 18 , virtually no shrinking agent escapes via the conveyor belt 7 . This leads to an inferior quality of shrinkage of the thermoplastic packaging material 2 in this area.
  • FIG. 3 to 6 show different operating modes of a first embodiment of a shrinking device 20 according to the invention in a sectional view in the transport direction.
  • FIG. 1 This is how it shows 3 a first embodiment of a shrinking device 20 in a sectional view in the transport direction.
  • two lower shrinking agent introduction devices 15-1, 15-2 are arranged below the transport path 6, which can be arranged in different positions below the transport path 6.
  • the lower shrinking agent introduction devices 15-1, 15-2 are each designed as distribution channels 21, which are designed to dispense shrinking agent with an upward flow direction.
  • the distribution channels 21 each extend along a longitudinal extension of the shrinking device 1 below the transport section 6, in particular below the upper run of the conveyor belt 7.
  • the positioning device 22 is formed, for example, by a carriage guide 23 assigned to the respective distribution channel 21 and at least one rail 24 extending transversely to the transport direction.
  • the distribution channels 21 can thus be displaced transversely to the transport direction by displacement along the rail 24 .
  • the position can be set manually or by motor and/or automatically.
  • the positioning device 22 can include a spindle adjustment with a corresponding crank.
  • An automated adjustment can also take place via a control device 30, which uses specific product parameters to determine the optimal arrangement of the distribution channels 21 and controls the positioning device 22 in order to adjust the arrangement of the distribution channels accordingly.
  • shaft walls 10 it may be necessary to adjust the arrangement of the shaft walls 10 within the shrinking device 20.
  • provision can be made for shaft walls 10 to be moved laterally in order to adapt the width of the transport tracks to the respective product requirements.
  • one of the inner shaft walls 12 can be moved directly up to an outer shaft wall 13 in order to use the shrinking device 20 for three-lane transport.
  • one of the inner shaft walls 12 could also be completely removed from the shrinking device 20 in the event of a product changeover.
  • a preferred embodiment can provide that the positioning of the at least one lower shrinking agent introduction device 15 and further lateral shrinking agent introduction devices 9 takes place in a coordinated manner and/or is adjusted in a coordinated manner by a control device 30 .
  • a shrinking agent generator 25, for example a hot air blower 26, is assigned to the distribution channels 21.
  • An alternative embodiment, not shown, can provide that each distribution channel 21 is assigned its own hot air blower 26, so that the supply of shrinking agent to each distribution channel 21 can be controlled and adjusted individually .
  • both distribution channels 21 are assigned to a common shrinkage agent generator 25, in particular via flexible supply lines 27, which have a sufficient length to enable the different positioning.
  • the supply of shrinking agent to each of the two distribution channels 21 can preferably be controlled and adjusted individually.
  • an adjusting means 28 for example a valve, a throttle valve or the like, is arranged between the shrinking agent generator 25 and the respective distribution channel 21 .
  • the distribution channels 21 are configured as nozzle modules 31 , each distribution channel 21 having an upper side 32 pointing towards the transport section 6 with nozzle openings 33 through which nozzle openings 33 the shrinking agent flows upwards in the direction of the transport section 6 .
  • One embodiment can provide that the size of the nozzle openings 33 and/or the application of shrinking agent to the nozzle openings 33 is/are adjustable at least partially in areas along the longitudinal extension, so that during transport through the shrinking device 20, more or less shrinking agent is applied from below in some areas the articles 3 wrapped with packaging material 2 can be applied.
  • the distribution channels 21 on the upper side 32 or the upper side 32 each comprise at least one sliding strip 35 which serves as a support surface for the conveyor belt 7 .
  • two sliding strips 35 extend parallel to the transport direction on the upper side edges.
  • the sliding strip 35 also has nozzle openings, which are aligned with the nozzle openings 33 of the upper side 32, so that the shrinking agent is passed upwards through the supporting conveyor belt 7 via the sliding strips 35.
  • the two distribution channels 21 are each assigned to the center of these two transport tracks.
  • each distribution channel 21 is assigned to two adjacent transport lanes in the middle in order to be able to serve all four transport lanes accordingly.
  • the shrinking device 20 continue to have a service item 37.
  • a distribution channel 21 can be brought into this if repair or maintenance work has to be carried out on this distribution channel 21 due to a fault or the like.
  • the service position 37 is preferably easily accessible from the outside, so that maintenance work on the distribution channel 21 arranged in the service position 37 can also be carried out by an appropriate operator during operation.
  • the 7 shows a shrinking device 20 designed for four-track transport, in which four distribution channels 21 are provided, so that one distribution channel 21 is assigned to each transport track. If only part of the transport paths is used, the distribution channels 21, which are assigned to the transport paths that are not used, can be switched off via the setting means 28, which is shown in FIG 7 marked with an X.
  • the lower shrinking agent introduction device 15 is part of an in 8 form shrinking agent module 40 shown.
  • a shrinking agent module 40 comprises at least one shrinking agent introduction device 15 and at least one positioning device 22.
  • the shrinking agent module 40 is designed to be arranged below a transport path of a shrinking device (not shown).
  • the shrinking agent introduction device 15 is designed to deliver shrinking agent with an upward flow direction.
  • the shrinking agent introduction device 15 can be fixed in different positions on the positioning device 22 .
  • the shrinking agent introduction device 15 is preferably designed as a distribution channel 21 or nozzle module 31 with nozzle openings 33 through which nozzle openings 33 the shrinking agent flows out upwards.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP21214804.3A 2021-02-16 2021-12-15 Dispositif de rétraction, procédé d'optimisation de la rétraction d'une matière d'emballage au niveau d'un assemblage comprenant au moins un article et un module de retrait Pending EP4043354A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021103598.8A DE102021103598A1 (de) 2021-02-16 2021-02-16 Schrumpfvorrichtung, Verfahren zum Optimieren des Aufschrumpfens eines Verpackungsmaterials auf eine Zusammenstellung umfassend mindestens einen Artikel und Schrumpfmittelmodul

Publications (1)

Publication Number Publication Date
EP4043354A1 true EP4043354A1 (fr) 2022-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21214804.3A Pending EP4043354A1 (fr) 2021-02-16 2021-12-15 Dispositif de rétraction, procédé d'optimisation de la rétraction d'une matière d'emballage au niveau d'un assemblage comprenant au moins un article et un module de retrait

Country Status (3)

Country Link
EP (1) EP4043354A1 (fr)
CN (1) CN114940290A (fr)
DE (1) DE102021103598A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022131134A1 (de) 2022-11-24 2024-05-29 Krones Aktiengesellschaft Schrumpfvorrichtung

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE1586349A1 (de) * 1967-12-06 1971-03-04 A W Wilisch Kg Verfahren und Vorrichtung zum Umhuellen einer Packung mit Folie
EP2551207A1 (fr) * 2011-07-25 2013-01-30 Krones Aktiengesellschaft Dispositif de rétractation avec refroidissement de gerbe
DE102014104646B4 (de) 2014-04-02 2018-10-31 Krones Aktiengesellschaft Vorrichtung zum Aufschrumpfen von Folie auf Artikel

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Publication number Priority date Publication date Assignee Title
DE1900954U (de) 1964-07-02 1964-09-17 Darex G M B H Vorrichtung zur herstellung von schrumpfbanderolen-packungen, insbesondere fuer obst und gemuese.
DE2212726A1 (de) 1972-03-16 1973-09-20 Fischer & Co Kg H Verfahren und vorrichtung zur tunneldurchlauferhitzung von mit schrumpffolien umhuelltem, insbesondere strangfoermigem gut
DE102005059295B4 (de) * 2004-12-10 2012-07-26 Khs Gmbh Schrumpfprozess zur Herstellung von festen, transportfähigen und bedruckbaren Gebinden und Vorrichtung zur Durchführung eines derartigen Schrumpfprozesses
EP2653394B1 (fr) * 2012-04-18 2015-03-04 Krones Aktiengesellschaft Dispositif de rétractation avec baguette d'obturation
DE102017119145A1 (de) * 2017-08-22 2019-02-28 Krones Aktiengesellschaft Schrumpfvorrichtung und Verfahren zum Ansaugen von Luft aus einem Innenraum einer Schrumpfvorrichtung
DE102019110645A1 (de) * 2019-04-25 2020-10-29 Krones Aktiengesellschaft Schrumpfvorrichtung und Verfahren zum Anpassen einer Schrumpfvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1586349A1 (de) * 1967-12-06 1971-03-04 A W Wilisch Kg Verfahren und Vorrichtung zum Umhuellen einer Packung mit Folie
EP2551207A1 (fr) * 2011-07-25 2013-01-30 Krones Aktiengesellschaft Dispositif de rétractation avec refroidissement de gerbe
DE102014104646B4 (de) 2014-04-02 2018-10-31 Krones Aktiengesellschaft Vorrichtung zum Aufschrumpfen von Folie auf Artikel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022131134A1 (de) 2022-11-24 2024-05-29 Krones Aktiengesellschaft Schrumpfvorrichtung

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DE102021103598A1 (de) 2022-08-18
CN114940290A (zh) 2022-08-26

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RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR